The term 'EXTREME Sects' can be broken down into two words, 'CULTS' (5 letters) and 'EXTREME'. CULTS are defined as a system of religious veneration and devotion directed towards a particular figure or object. EXTREME sects are those CULTS that have EXTREME beliefs and practices, often involving violence or other dangerous activities. These sects are typically seen as a threat to society and are often the subject of much public scrutiny.